<template>
	<div>
		<el-breadcrumb separator="/">
		  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
		  <el-breadcrumb-item>商品管理</el-breadcrumb-item>
		  <el-breadcrumb-item>商品列表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图 -->
		<el-card>
			<el-row :gutter="20">
				<el-col :span="8">
					<el-input placeholder="请输入内容" 
					v-model="queryInfo.query" clearable @clear="getGoodsList">
					<el-button slot="append" icon="el-icon-search"
					@click="getGoodsList"></el-button>
					</el-input>
				</el-col>
				<el-col :span="8">
					<el-button type="primary" @click="goAddpage">添加商品</el-button>
				</el-col>
			</el-row>
			<el-table :data='goodslist' border stripe>
				<el-table-column type="index"></el-table-column>
				<el-table-column label="商品名称" prop="goods_name">
				</el-table-column>
				<el-table-column label="商品价格(元)" prop="goods_price">
				</el-table-column>
				<el-table-column label="商品重量" prop="goods_weight">
				</el-table-column>
				<el-table-column label="创建时间" prop="add_time">
					<template slot-scope="scope">
						<!-- 调用时间过滤器 -->
						{{scope.row.add_time | dateFormat}}
					</template>
				</el-table-column>
				<el-table-column label="操作">
					<template slot-scope="scope">
						<el-button type="primary" icon="el-icon-edit" 
						size="mini"></el-button>
						<el-button type="danger" icon="el-icon-delete" 
						size="mini" @click="removeById(scope.row.goods_id)"></el-button>
					</template>
				</el-table-column>
			</el-table>
			<!-- 分页区域 -->
			<el-pagination @size-change="handleSizeChange"
			 @current-change="handleCurrentChange" 
			 :current-page="queryInfo.pagenum"
			  :page-sizes= "[5, 10, 15, 20]" 
			  :page-size="queryInfo.pagesize"
			 layout="total, sizes, prev, pager, next, jumper" 
			:total="total" background>
				
			</el-pagination>
		</el-card>
	</div>
</template>

<script>
export default {
	data() {
		return {
			//查询参数对象
			queryInfo: {
				query: '',
				pagenum: 1,
				pagesize: 10
			},
			//保存商品列表的数组
			goodslist: [],
			//总数据条数
			total: 0
		}
	},
	created() {
		this.getGoodsList()
	},
	methods: {
		async getGoodsList() {
			const {data: res} = await this.$http.get('goods', 
			{ 
				params: this.queryInfo
			})
			
			if(res.meta.status !== 200) {
				return this.$message.error('获取商品列表失败')
			}
			
			this.$message.success('获取商品列表成功')
			//console.log(res.data)
			this.goodslist = res.data.goods
			this.total = res.data.total
		},
		handleSizeChange(newSize) {
			this.queryInfo.pagesize = newSize
			this.getGoodsList()
		},
		handleCurrentChange(newPage) {
			this.queryInfo.pagenum = newPage
			this.getGoodsList()
		},
		async removeById(id) {
			 const comfirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
			          confirmButtonText: '确定',
			          cancelButtonText: '取消',
			          type: 'warning'
			        }).catch(err => err)
					
					if(comfirmResult !== 'confirm') {
						return this.$message.info('已取消操作')
					}
					const { data: res } = await this.$http.delete(
					`goods/${id}`)
					
					if(res.meta.status !== 200) {
						return this.$message.error('删除失败')
					}
					
					this.$message.success('删除失败')
					this.getGoodsList()
		},
		goAddpage() {
			this.$router.push('/goods/add')
		}
		
	}

}
</script>

<style lang="less" scoped>
</style>
